Analysis
- max time kernel
90s - max time network
113s - platform
windows10_x64 - resource
win10v20201028 - submitted
24/12/2020, 09:28
General
- Target Invoices.exe
- Size 217KB
- Sample201224-msxpkk56s6
- SHA256 b9b2ce68a18db98a1253e9ece1d2d99a030be25ad433ef2dd3889cff53316d99
Malware Config
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Drops file in Drivers directory 1 IoCs
- Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Adds Run key to start application 2 TTPs 1 IoCs
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Invoices.exe"C:\Users\Admin\AppData\Local\Temp\Invoices.exe"1⤵
- Drops file in Drivers directory
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/4700-2-0x0000000073CE0000-0x00000000743CE000-memory.dmp
memory/4700-3-0x0000000000240000-0x0000000000241000-memory.dmp
memory/4700-5-0x0000000005030000-0x0000000005031000-memory.dmp
memory/4700-6-0x0000000004BD0000-0x0000000004BD1000-memory.dmp
memory/4700-7-0x0000000004CB0000-0x0000000004CB1000-memory.dmp
memory/4700-8-0x0000000005790000-0x0000000005791000-memory.dmp
memory/4700-9-0x0000000005DA0000-0x0000000005DA1000-memory.dmp
memory/4700-10-0x0000000005BC0000-0x0000000005BC1000-memory.dmp